42.—(1) Crushing waste discharge lamps (including fluorescent tubes which are hazardous waste within category 20 01 21*) for the purposes of volume reduction prior to collection , where the material is intended for recovery or reuse if—
(a)the operation is carried on in equipment designed for the purpose of volume reduction prior to collection;
(b)the operation is carried on solely for that purpose;
(c)the mercury concentration in emissions does not exceed 50 microgrammes/cubic metre; and
(d)the total quantity of lamps processed in any period of 24 hours does not exceed 3 tonnes.
(2) Secure storage of such lamps prior to crushing, or after crushing but prior to collection, if—
(a)the lamps are stored under weatherproof covering; and
(b)after crushing, the lamps are stored in a secure container.